The creation of hybrid metal-semiconductor nanostructures is an important next step towards active devises from inorganic nanocrystals. There is also considerable interplay between the optical and electronic behavior of the components of such hybrid materials, potentially leading to enhanced or new properties. The gold tipped hyperbranched particles provide not only an significant progress in the level of control over inorganic hybrid nano-materials but may allow creating blends with organic molecules for novel electronic and optical materials.

We have prepared a novel type of hybrid metal-semiconductor Au-CdTe nanostructures with very complex shapes, enormously large surface to volume ratio and well defined evenly sized gold anchor points at the tips. It may give rise to a new class of multifunctional materials, in particular in combination with organic molecules, with possible application for example in energy conversion devices, bio-functionalized materials, and infrared emitting/detecting devices.

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